Hoping to get some advice on taking protonix vs nexium for chronic gastritis? Iíve taken omeprazole for several weeks, and then took protonix, which Iíve been on for just over 3 weeks, and Iím still battling terrible nausea. Iím considering switching to nexium soon but have gotten varying advice Ė it will cost me several hundred dollars to buy it without good insurance. Some say nexium is no different than protonix and tell me never to pay that much Ė but Iíve also seen people on these boards say that nexium worked great for them. My doctors are of no help. Does anyone have any advice? Should I ride out the protonix for several more weeks, or is nexium better (and worth the money)? Please help!